Half to i



2 Sheets-Sheet 1.

(No Model.)

v1:'. MERTSHEIMER.

SPARK ARRBSTER.

PatentedV Oct. 7 885.

Q X N n OO ...l m. Q U 2. gw@ G m J 9. o0. o 2 3 0. N

NA PETERS, Pholwl-ilhogmphur, Washingtnn, DA C.

(No Model.) 2 Sheets- Sheet 2.

P. MBRTSHBIMER. SPARK ARRESTER.

\ No. 828,862. Patented oct. 27', 1885.

l lll'Illllll'I-lIIIIIIIIIIIIIIII M i IINTTEE STATES PATENT OEETEEG FREDERICK MERTSHEIMER, OF DENVER, COLORADO, ASSIGN OR OE ONE- HALF TO I. H. OONGDON, OF OMAHA, NEBRASKA.

SPARKHARRESTER.

SPECIFICATION forming part of Letters Patent No. 328,962, dated October 27, 1885. Application filed J une 29, 1885. Serial No. 170,154. (No model.)

To a/ZZ whom it may concern..-

Beit known that I, FREDERICK MEETSHEI- MER, of Denver, in the county of Arapahoe and State of Colorado, have invented certain Improvements in Spark-Arresters for Locomotives, of which the following is a specification.

This invention relates to an improved construction and arrangement of parts for arresting and extinguishing sparks in locomotiveboilers and discharging the resulting cinders while the engine is in motion, the present arrangementl being designed more particularly as an improvement upon that upon which Letters Patent of the United States were granted to me on the 22d day of July, 1884, N o. 302, 513.

In the accompanying drawings, Figure l represents in side elevation the forward por-I tion of a locomotive having my invention incorporated therein. Fig. 2 is a vertical longitudinal section through the center of the same. Figs. 3, 4L, and 5 are transverse vertical sections on the lines .fr y y, and z z, respectively, looking in the directions indicated by the arrows.

With the exception of the peculiarities hereinafter described,the locomotive may be of orninary construction in all its parts.

In carrying my invention into effect the outer shell or body of the boiler is extended -forward a considerable distance in advance of the tube-sheet a to form a smoke-box, and to the top of this box, at the forward end, I apply the smoke-stack c. At the forward end of this extension of the smokebox I secure to its under side a cinder-chamber, D, extending downward, its bottom incliningdownward toward the middle, and also inclining forward to a dischargepipe, E, which is extended therefrom in a lateral direction in order to deliver the cinders at the side of the road outside of the rails. I prefer to arrange this pipe, as shown, to deliver in advance of the truck or pilot wheels; but it may be otherwise located, if preferred. The cinder-chamber D opens at the top throughout its entire area into the smoke-box, there being no obstruction whatever between them.

` In the smoke-box, immediately in advance of the tube-sheet, I locate atransverse deflecting or draft-regulating plate, d, having a forward inclination toward the lower edge. `This plate is of a width or diameter somewhat less than that of the smoke-box, so that the products of combustion may iiow in a forward direction around its outer edge. It may be iixed in position; but I prefer to provide for its vertical adjustment, in order to meet the varying conditions encountered in practice. A simple means of adjustment (represented in the drawings) consists of two vertical rods, e, attached to the edges of the plate, and extended upward through collars or plates at the top of the smoke-box,and secured by external set-screws, f,- but other equivalent adjusting devices, such as are within the knowledge of the skilled mechanic, may be substituted.

In front of the plate d, I locate within the smokebox a perforated plate, g, commencing at or near the top of the smoke-box and extending in a downward and forward direction to a point near the front, where it is joined to the lower edge of asecond perforated plate, h, which extends upward and forward until it meets the frontl of the smoke-box at or near the top forward of the smoke-stack. The two plates g and h are joined at their edges to the walls of the smoke-box, and constitute jointly a screen or septum, through which all pro` ducts are compelled to pass in iiowing to the stack.

The exhaust tubes or nozzle t' are extended forward and upward through plate g 'to a point immediately beneath the stack, as usual. The perforations of the plates g and h are elongated horizontally, as represented in the drawings. They may be modiiied in size, but in practice I nd that good results are Vobtained by openings three thirty-seconds of `an inch by onehalf inch in size.

Practical experience has shown that the elongation ofthe openings horizontally instead of vertically is of great practical advantage, in that there is less liability of their becoming choked or clogged by the accumulation of cinders therein. Thorough practical tests have shown that when the plates are inclined from the perpendicular and the openings elonl gated horizontally the cinders arrested by the surface of the plate will be deflected downward across the narrow or smaller diameter of the openings without tendency to lodge there- 5 in,while in the case of openings which are elongated vertically the cinders will frequently pass through the same or accumulate therein.

Owing to the inclined positions of the plates, and the extended area which they present, the aggregate area of the openings may be so great that the plates afford practically no impediment to the draft, the exhaust and delivery being as free, or nearly so, as in ordinary I 5 boilers.

From source whencel water may be received under pressure, I extend a pipe, k, forward to the bottom of the cinder-chamber D, where it is divided into two arms or branches, one terminating in the bottom of the chamber and v the other extended forward into the deliverypipe-E. rllhis pipe, provided with a suitable cock under control of the engineer, serves as a means of delivering water upon the cinders, for the double purpose of wetting them down to extinguish the fire and delivering them forcibly from the chamber D through the pipe E when desired. The outer end of the pipe E is preferably, but not necessarily, provided with a valve for closing its mouth. This valve may` be of any proper construction; but vI recommend for the purpose the device represented in the drawings, consisting simply of a plate, f, hinged to swing across the same. 'Ihe pivot is encircled by a spiral spring, which causes suflicientfriction between the parts to keep the valve from opening accidentally, and prevents chattering. The lower edge of the valve may be interlocked, as shown, with a lip on the mouth of the pipe to hold the parts in close contact. The valve will be connected by rod m and elbow-lever n or other proper connecting devices with a rod, o, extending backward within reach of the engineer, so that he may open and close the valve from his post of duty while the engine is in motion.

In the operation of the boiler the sparks and cinders passing forward through the iues or tubes encounter the rear surface of the plate d, by which they are arrested and directed downward. Passing the edges of the plate, l the smoke and gaseous matters flow upward through the perforations in the plates g and h to the stack,while the solid matters arrested by the said plates fall into the chamber D.

At suitabletimes the engineer opening the cock, causes water to be discharged through the pipe k,whereby the cinders are thoroughly extinguished, and the remaining fire, if any, extinguished. At proper times the atten dant, by means of the operating devices, opens the valve f, whereupon the delivery-Water being continued through the pipe k, the accumulated cinders will be delivered through the pipe E and discharged by the roadside.

By means of my apparatus the cinders may the boiler-head, or other suitable` be delivered at will without the necessity of shutting off steam or stopping the engine, and this without impairing or appreciably inter- 7o fering with the draft through the boiler-tubes.

'lo afford access to the internal parts without the necessity of removing the plates g and h, I provide the smoke-chamber with a manhole and cover, t, at the top, as shown in Figs. 1, 2, and 3. I also provide in the side of the cinder-chamber D a man-hole and cover, u, as shown in Figs. 1 and 5.

Having thus described my invention, what I claim isl. In combination with the boiler having a forward smoke-chamber, the perforated cin` der-arresting plates and the imperforate deiiector-plate d,suspended in rear of said plates in position to permit the passage of the smoke around its entire periphery.

2. The boiler having the forward smokechamber and the perforated plates therein, in combination with the inclined plate d, located between the iiues and the perforated plates, and combined with means, substantially as described, for effecting its adjustment bodily in a vertical direction.

3. In a spark arrester, the combination, with a boiler having a forward smoke-chamber, 4of an inclined plate or plates located in said chamber and provided with openings or perforations elongated in a horizontal direction, substantially as and for the purpose described.

4. In a spark-arrester for locomotives, a cinder-arresting plate arranged obliquely to the path of the outgoing products, substantially as described, whereby the cinders are caused to cross the openings in the direction of their lesser diameter and thus prevented from lodging therein.

5. In a locomotiveiboiler, a cinder-arresting plate inclined downward and forward and provided with openings elongated horizon'- tally, substantially as and for the purpose described.

6. In combination with alocomotive-boiler, an inclined perforated plate located in its for. ward end to arrest cinders and deiect the same downward, and the cinder-chamber built on'the under side of the boiler beneath the plate and having its upper side in free communication with the boiler throughout its entire width.

7. In combination with a locomotive-boiler, an inclined perforated plate to arrest the cinders, a cinderreceiving chamber at the base, y and a discharge-pipe extending laterally from said chamber to deliver the cinders outside of 125 the track.

8. In a locomotive-boiler, the combination, with a cinder-arresting chamber and plates for directing the cinders thereto, of the dischargepipe and a water-delivery pipe extended into said discharge-pipe, substantially as described, whereby the automatic delivery IOO IIO

of the cinders is effected.

9. In a locomotive-boiler, a cinder-arresting chamber and sparkarresting devices, substantially as shown, to direct the cinders thereto, in combination with the delivery-pipe E, the Water-pipe discharging into said chamber, and the Water-pipe discharging into the delivery-pipe.

10. In combination with a locomotiveboiler having a spark-arresting chamber at the front, a laterally-extending discharge-tube, in combination with a valve to close said pipe, and means, substantially as described, for operating said valve from a distance, and a Waterdelivery pipe to effect the discharge of the cinders when said valve is open.

l1. In combination with alocornotive-boiler having the smoke-chamber at its forward end,

two perforated plates, g and h, located beneath the stack or chimney and approaching each other toward the lower edges.

12. The .locomotive-boiler provided with Vthe spark-arresting plates g and h, xed in po- 

